Blender 2.79 - Can't find Spiral tools in toolbox
If you are completely new to Blender, you really should follow a tutorial. I highly recommend Blender Guru's introductory series. 

There are a few ways you could approach your problem. The easiest way would be to extrude(select and press e) and rotate(press r and lock it onto an axis by pressing x, y, or z). If you wanted to be more precise, you could use a curve, and taper it with another circle curve. However, this is rather excessive for someone inexperienced. It will take time to get the hang of Blender.